Can-body-forming machine.



No. 7|s,m. f Patented Dec. I6, |902.- m- J. QBuss aL N; B. wAcHHonsT.

CAN BODY FRMING MACHINE.

M'. ".1. Ross & N. B. wAcHHonsT.

CAN BQDY FOBMING MACHINE.

(Application mea Feb. 25, 1902.)

3 Sheets-Sheet 2. 5 50 F?,

(No Model.)

l WJTNESSES.-

jf INVENTUM `m 7 8' By 7?. im-M l 4 Patented Dec. I6, |902. M. .Lfnoss si N. .-wAcHHuRsT..

L no; mm.

GAN BODY FUBMING MASI-HNE.i

(Application filed Feb. 25. 1902.)

3 Sheets-Sheet 3` JNI/ENTORS WITNESS/Es.

p/Wf a/Mm A Umm/EY. v

Ai'inNr FFICE.

MAURICE J. ROSS AND `NEWTON B. WACHHORST, OF SAN FRANCISCO,

CALIFORNIA.

`.CAN`BODYFORNIING MACHINE.

SPECIFICATION forming part of Letters Patent No. '716,1 11, dated December 16, 1902.

` -Application iiledebruary 25,1902. Serial No. 95,604. (No model.)

T all whom t may concern:

Be it known that we, MAURICE J. ROSS and NEWTON B. WAcHHoRsT, citizens of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Can-Body-Forming Machines, `of which the following is a specification.

Our invention relates to improvements in machines for making can-bodies, the object of ourinvention being to provide a machine of this character which shall be simple in coni struction and of great capacity for the size of the machine.

Ourinvention therefore resides in the novel construction, combination,and arrangement of parts for the above ends hereinafter fully specified, and particularly pointed out inthe claims.

In the accompanying drawings, Figure 1 is a front elevation' of our improved machine, certain parts being broken away. Fig. 2 is a side view of the same, partly in section,`on the line A A of Fig. `1. Fig. 3 is a horizontal section on the line B B of Fig. 2. Fig. 4 is a vertical section on the line C C of Fig. 2. Fig. 5 is a vertical section on the line D D of Fig. 3,1ooking in the direction of the arrow d. Fig. 6 isla similar section on the line E E of Fig. 3 looking in the direction of the arrow e. Fig. 7 is a section on the line F F of Fig. 2 looking in the direction of the arrow f. Fig. Sis a detail plan view of the device for regulating the gage. Fig.` 9 is a crosssectionof the same. Fig. 10 is an enlarged View of a portion of the horn, showing the edges of the can in position thereon. Fig. 11 is a detail perspectiveviewof the fiat canbody blank. Fig. 12 is a side elevation of the expansible horn. Fig. 13 is a detail side nview of the pin for expanding the same. Fig. 14. is a detail4 cross-section of the horn.

Referring to the drawings, 1 represents a suitable base, upon the rear side of which is mounted a standard 2, supporting at its upper end a bearing 3`for a shaft 4. Upon the front end of said shaft is secured a4 carrierdisk 5, having thereon the horns or mandrels 6 for shaping and sizing the flat sheet-metal bodies into the can-bodies. Upon the rear end of said shaft is fixedly secured a ratchetwheel 7, having ratchet-teeth 8, and behind said ratchet-wheel, upon the shaft 4, is loosely mounted a driving-lever 9, having pivoted thereon a pawl 1U, pressed upwardly by a spring 1l into engagement successively with the ratchet-teeth 8. The lever 9 is oscillated by means of a link 12, attached by a crankpin 13 to a disk 14 on a shaft 15. Said shaft 15 rotates at its rear end in a bearing 16, supported upon a standard 17 upon the baseplate 1, and at its front end in a bearing 18 uponV a standard 19 upon said base-plate, said shaft 15 carrying at its front end a pulley 20 for deriving power from any suitable source. By this means the 'disk 5, carrying the horns or mandrels 6, is given an intermittent rotation, and there being eight ratchet-teeth in the ratchet-wheel and eight horns or mandrels upon said disk the disk `moves through one-eighth of a revolution at a time, and by said movements carries said horns in succession to the points at which the several operations are performed on the canbody blank.

Upon the standard 19 is supported a table 2l, through an opening 22 in which the mandrels are carried in succession by the revolving carrier-disk. Said table has` on each side of said opening removable sections 23, so secured thereto as to leave on each side-a recess 24, in which are received shapers 25, pressed outward by means of springs 26. The louter edges of said Shapers are rounded, as shown, as likewise are the edges of the table above and below said Shapers.

Above the table are secured gages 27,i adjustable on said table by means of screws 28, working in slots 29 in said gages, said slots having beveled sides, as shown in figure, so that the edges of said gages on opposite sides of the opening can be moved nearer to or farther from each other, as may be desired, according to the size of the can-body blank. Said blanks 30 are fed into the space between said gages either by hand or by suitable mechanical means, and before being so :fed they have their opposite edges bent or folded away from each other, as shown at 3l 32 in Fig. 11. Over said iiat blank as it lies between said gages move the slides 33, which slide in guide- ICC ways 34 on the table to and from the opening 22 and carry pusher-plates 35 36. Said slides have downward extensions or lugs 37, to which are attached links 38, jointed at the other ends to levers 39,"pivoted on a pin 40, secured in the bottom of a hanger 41, extending downward from the table. The lower ends of said levers 39 carry cam-rollers 42, which move in cam-grooves 43 in disks 44, secured upon the shaft l5. Thus at predetermined times in the revolution of said shaft first the horn or mandrel descends down onto the middle ofthe `flat blank 30 and carries the saine into the opening 22, forming it into a U shape, and then the pusher-plates 35 36 advance against the upstanding sides of the U-shaped blank and force the same toward each other around the horn or mandrel, so that the folded edge 3l of the can-body blank on one side passes over and hooks on to the folded edge 32 on the other side.

To limit the movement of the edge 32, moved into position by the pusher-plate 36, we provide a gage 45, which consists of a narrow plate working in a radial slot in the horn and pressed outward by means of springs 46. This gage will normally extend from the periphery of the horn and will arrest the movement of the edge 32 of the fiat can-body. During the whole of this time the horn will have been collapsed. For the purpose of properly shaping the can-body and also to bring the hooked edges together and to accurately size the can-body we make said horns expansible. Expansible horns for this purpose are old and well known, and we do not use herein any novel const-ruction for this purpose. Said horn comprises two sections 47 48, jointed t0- gether, as shown at 49, and normally drawn together by a spring 50. A pin 51 passes into the center of the main section 47 and has cut into the side thereof two depressions 52. In the smaller section 48 there are screwed two screws 53, the ends of said screws abutting against the round or butt side of the pin 5l when the pin is wholly pushed inward, thereby holding said outer section out against the action of said spring 50. When the pin is drawn out, the two depressions 52 come opposite to the ends of the screws 53 and the screws move thereto under the action of said spring, thereby causing the horn to collapse.

In order to expand the horn at the proper time,we provide a circularcam-rail 55, having its upper end 56 beveled away from the carrier-disk at the top, so that when the head 57 of each pin in succession is brought into contact with said cam-rail it will be pushed inward, thereby expanding said disk. .As said head travels along the edge of said cam-rail through about one-quarter of a revolution of the carrier-disk it will be held in and the horn will be kept expanded until said head reaches a T-slot 58, which is in the line of the circular rail. Into said T-slot said head Will enter, the outer lips 59 of said T-slot converging inwardly as the head advances, as shown in detail in Fig. 4, so that as said head moves along in said T-slot the pin 5l is drawn outward, thereby shifting the depressions so that they register with the screws and the outer section collapses onto the main section under the action of the spring. Before this takes place, however, it is necessary t-o close the seam of the can-body. For this purpose there are provided two standards 6l 62, having formed therein vertical guideways 63, in which move slides 64, carrying upper and lower rollers 65 66. Through vertical slots 67 in said slides extend from the rear sides of said guideways pivot-pins 68, on which are vertically mounted cams 69, to which is pivotallyconnected a bar 70. The end of said bar is jointed to a link 7l, connected to a lever 72, pivoted on a standard 73, the upper end of said lever 72 carrying a cam-roller 74, working in a cam-groove 75 in a disk 77, mounted on the cam-shaft. By this means in the revolution of the cam-shaft the slides will be raised. Said slides carry, the one in front of the horn, a thrust-block 80, adjustable in an extension from said slide, and the other, in the rear of the horn, a guideway 8l for a bumper. Said bumper 82 is formed with beveled edges, sliding in said guideway and is jointed, as shown at 83, to a link 84, slotted, as shown at 85, to pass around the cam-shaft and also to guide it on said cam-shaft, said link having on its rear end a roller 86, rolling in a cam-groove 87 in a disk 88 on the carnshaft. By this construction after the thrustblock and the bumper-guide have been raised to the proper position the bumper is moved forward by the revolution of the cam-shaft, and the end of said bumper presses against the seam and closes the same down upon the horn. By the continued revolution of the cam-shaft the bumper is Withd rawn,the slides are lowered, and the pawl engages the next ratchet of the ratchet-wheel and advances the disk carrying the horns thereon one-eighth of a revolution. The can-bodies thus formed can be removed from the horns at any time between the operation of seaming and the operation of placing the body upon the horn either by hand or-by mechanical means, as may be desired.

An important advantage arising from the construction of our machine is that we are enabled to perform the two operations of placing the can-body blank upon the horn and bumping the same to close the seam at the same time on two bodies, this being due to the fact that the bodyis moved from one position after it has beenplaced upon the horn into another position for bumping. In prior machines for forming can-bodies it has been customary to perform the operations of forming the can-body and bumping the same While the can-body remains in the same position. We obtain an important advantage by moving the can-body into another position after forming and before closing the seam, thus gaining time.

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We claimi 1. A can-body-forming machine comprising a disk, horns or mandrels carried thereon, a table provided with means for holdinga fiat can-body blank in the pat-h of the horns, means for intermittently rotating said disk to press a horn upon said `blankto bend the same, pusher-plates at the sides of the blank, means for pushingsaid plates toward each other to bring the edges of the blank together and form the seam, and a bumper to which said horn is brought by its revolution with the disk, said bumper being provided with means for pressing the body to close the seam substantially as described.

2. Inacan-body-forming machine, the combination of a disk, a series of horns or mandrels carried thereon, a table having an opening therethrough interposed in the path of the horns, adjustable gages for adjusting the position ot'a fiat can-body blank in said opening, pusheuplates at the sides of said opening,means for pushingsaid plates toward each other to push the edges of the blank into position, a thrust-block and a bumper, means for raising said thrust-block and bumper into position before and behind a horn respectively, and means for moving said bumper against the can-body on the horn to `close the seam, substantially as described.

3. In a can-forming machine, the combination of a disk, means for intermittently rotating the same, a series of horns carried on said disk, a table having an opening through which the `horns are carried in succession by the revolving disk, shapers for bending the flat can-body blank, having rounded edges and resiliently supported in said table on each side of said opening means for bringing the edges of the flat blank together to form a seam and means for closing said seam, substantiallyp as described.

4. In acari-body-forming machine, the combination of a revolvingdisk, horns or mandrels carried thereon, a table having an opening through which the horns pass in succession, shaperson each side of said opening for bending a can-body blank around the horn, means for closing the edges of the blank to form a seam and means for closing said seam, substantially as described.

5. Inacan-body-forming machine, thecombination of at-able having an opening, means for passing a series of horns in succession through said opening, shapers on `each side of said opening for bending a can-body blank around a horn, means for pressing the edges 1 of the blank together to form a seam, and

means for closing said seam, substantially as described.

6. In a can-body-forming machine, the com- 1 bination of a table having an opening, a series of horns, means for passing said horns in succession through said opening, shapers at the sides of said opening for bending a can-body blank around a horn, pusher-plates at the Sides of said opening for pushing the edges of the blank together to form a seam, and means for closing said seam, substantially as described. 7. In a can-body-forming machine, the combination of a table having an opening, a series of horns, means for passing said horns in succession through said opening, means for bending a canbody blank supportedin said opening around a horn as it passes therethrough,

means for bringing the edges of said blank together to form a seam, a thrust-block and a bumper, means for transporting the horn with the can-body thereon into position between said thrust-block and bumper, and means for pressing said bumper against the seam to close the same, substantially as described.

8. In a can-body-forming machine, the combination of a table having an opening, means for supporting a flat can-body blank across said opening, a series of horns, means for passing said horns in succession throughsaid opening, means for bending a can-body blank around a horn as it passes through saidopening, means for closing the edges of said canbody, means for transporting said blank to a distance from said opening, a thrust--block and a bumper, means for movingsaid thrustblock and bumper to opposite sides of said can-bod y, and means for drawing said thrustblock and bumper together on opposite sides of the can-body to close the seam, substantially as described.

9. In acan-body-forming machine, the combination ot' a table having an opening, means for supporting a flat can-body blank in said opening, a series of horns, each horn' being provided with a gage extending above the rounded surface of said horn, and a spring for pressing outward said gage, meansfor passing said hornsin succession through said opening,means for bending said blank around a horn when so passing, a pusher-plate on" disk, means for supporting a can-bodyblank in the path of the horn, means for bending the blank around the horn, a device automatically engaging the pin as the horn moves to shift said pin to expand the horn before the blank is bent around the same, said *de-` vice being also provided with means for shifting the pin to permit the horn to collapse,

after the can-body has been formed around thehorn, substantially as described.

1l. In a can-body-forming machine, the

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combination of a disk, means for rotating the same, a series of horns carried by said disk, each horn being expansible and havinga pin the reciprocating movement of which expands the horn or permits it to collapse, a cam-rail engaging said pinto shift the same to expand the horn, means for exposing a can body blank in the path of the horn, means for bending said blank around the hornin its passage, means for closing together the edges of said blank, said rail also having at the end thereof an extension engaging the pin to shift the same to permit the horn to collapse, substantially as described.

12. In a can-body-forming machine, the combination of a disk, means for rotating the same, a series of horns carried by said disk, each horn being expansible and having a pin the reciprocating movementof which expands the horn or permits it to collapse, a cam-rail engaging said pin to shift the same to expand the horn, means for eXposingacan-body blank in the path of the horn, means for bending M. J. ROSS. N. B. WACHHORST.

Witnesses:

FRANCIS M. WRIGHT, BEssIE GORFINKEL. 

